Moment and moment magnitude of seismic events located by stacking

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F14%3A00438579" target="_blank" >RIV/67985891:_____/14:00438579 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1190/GEO2014-0179.1" target="_blank" >http://dx.doi.org/10.1190/GEO2014-0179.1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1190/GEO2014-0179.1" target="_blank" >10.1190/GEO2014-0179.1</a>

Result language

angličtina

Original language name

Moment and moment magnitude of seismic events located by stacking

Original language description

Determination of moment and moment magnitude for seismic events located by stacking has been an unsolved problem because current methodologies cannot be applied. To solve this problem, we have developed a methodology for moment magnitude M-w estimation of (micro) seismic events. Our method was designed for stacking waveforms. We found that magnitude can be determined from the stack of amplitudes corrected for radiation pattern and propagation effects such as geometric spreading, attenuation, and free-surface boundary. From the stack of corrected waveforms, we found the low-frequency limit corresponding to the stack of particle displacement and calculated seismic moment. We found that an unstacked method of estimating moment magnitude on each trace andaveraging these estimates was consistent with the method we developed although it was limited to higher magnitude events and more sensitive to noise. We benchmarked our methodology with a case study and found improvement in M-w estimation

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DC - Seismology, volcanology and Earth structure

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Geophysics

ISSN

0016-8033

e-ISSN

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Volume of the periodical

79

Issue of the periodical within the volume

6

Country of publishing house

US - UNITED STATES

Number of pages

5

Pages from-to

"A57"-"A61"

UT code for WoS article

000345908500003

EID of the result in the Scopus database

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